One day in 1925 a friend asked A. J. A. Symons if he had read Fr. Rolfe’s Hadrian the Seventh. He hadn’t, but soon did, and found himself entranced by the novel—“a masterpiece”—and no less fascinated by the mysterious person of its all-but-forgotten creator. The Quest for Corvo is a hilarious and heartbreaking portrait of the strange Frederick Rolfe, self-appointed Baron Corvo, an artist, writer, and frustrated aspirant to the priesthood with a bottomless talent for self-destruction. But this singular work, subtitled “an experiment in biography,” is also a remarkable self-portrait, a study of the obsession and sympathy that inspires the biographer’s art.